11031021211303 has 4 divisors (see below), whose sum is σ = 11386860605248. Its totient is φ = 10675181817360.

The previous prime is 11031021211279. The next prime is 11031021211319. The reversal of 11031021211303 is 30311212013011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11031021211303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031021211333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177919696926 + ... + 177919696987.

It is an arithmetic number, because the mean of its divisors is an integer number (2846715151312).

Almost surely, 2^{11031021211303} is an apocalyptic number.

11031021211303 is a deficient number, since it is larger than the sum of its proper divisors (355839393945).

11031021211303 is an equidigital number, since it uses as much as digits as its factorization.

11031021211303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355839393944.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 11031021211303 its reverse (30311212013011), we get a palindrome (41342233224314).

The spelling of 11031021211303 in words is "eleven trillion, thirty-one billion, twenty-one million, two hundred eleven thousand, three hundred three".